CN112744452B - Packaging roll film and preparation method thereof - Google Patents

Packaging roll film and preparation method thereof Download PDF

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Publication number
CN112744452B
CN112744452B CN202110061522.2A CN202110061522A CN112744452B CN 112744452 B CN112744452 B CN 112744452B CN 202110061522 A CN202110061522 A CN 202110061522A CN 112744452 B CN112744452 B CN 112744452B
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China
Prior art keywords
layer
adhesive film
adhesive
film
packaging
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CN202110061522.2A
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Chinese (zh)
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CN112744452A (en
Inventor
朱武传
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Yajia Cotton Picker Parts Co ltd
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Zhejiang Yajia Cotton Picker Parts Co ltd
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Application filed by Zhejiang Yajia Cotton Picker Parts Co ltd filed Critical Zhejiang Yajia Cotton Picker Parts Co ltd
Priority to CN202110061522.2A priority Critical patent/CN112744452B/en
Priority to US17/207,927 priority patent/US20220227553A1/en
Publication of CN112744452A publication Critical patent/CN112744452A/en
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Publication of CN112744452B publication Critical patent/CN112744452B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/14—Wrappers or flexible covers with areas coated with adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/28—Wound package of webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H21/00—Apparatus for splicing webs
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F15/00—Baling presses for straw, hay or the like
    • A01F15/07—Rotobalers, i.e. machines for forming cylindrical bales by winding and pressing
    • A01F15/071—Wrapping devices
    • A01F2015/0745—Special features of the wrapping material for wrapping the bale
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1944—Wrapping or packing material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)

Abstract

The invention discloses a packaging roll film, wherein a first transparent adhesive tape layer can ensure to cover a second high-adhesion layer, so that the problem caused when the second high-adhesion layer is exposed is solved, an adhesive film and a non-adhesive film do not need to cover the second high-adhesion layer completely in the preparation process, and the packaging roll film is convenient to prepare; simultaneously when this roll of membrane is opened a book the back to article packing, the reel stops rotating when the circulation of preceding package section is finished, article continues to rotate because of inertia for the junction of two preceding package sections produces the pulling force, at first leads to releasable layer and the separation of second high cohesiveness layer, makes the non-sticky film on the latter package section to unwind, and the sticky film of preceding package section can continue to roll up on article, and can fix on the sticky film of inlayer because of the existence of pulling force makes the even bonding of second high cohesiveness layer, guarantees result of use, then leads to tearing line on the latter package section to be torn the separation front and back package section. Also discloses a preparation method of the packaging rolled film.

Description

Packaging roll film and preparation method thereof
Technical Field
The invention relates to the technical field of packaging materials, in particular to a packaging roll film and a preparation method thereof.
Background
Conventional wrapping operations wrap an article (round, square or other shaped bundle) multiple turns with film from a roll, the ends of which must be bonded to the film layers below in order to securely wrap the article. During operation of the cotton picker, bales of cotton are ultimately packaged by the film. Each wrapping section of film wound on the roll includes a non-tacky film segment and a tacky film segment. Winding a plurality of turns through a non-adhesive film section during packaging; winding the adhesive film section for a plurality of times, wherein the contact part of the adhesive film section has viscosity but can be separated when the adhesive film section is wound; eventually causing the ends of the adhesive film segments to adhere to the underlying adhesive film segments, during which the article itself also rotates.
The invention patent application 20038010024.X, a packaging material with Z-lock system and methods of making and using such a packaging material, discloses a packaging material comprising a first packaging component; a second package part; at least one Z-lock portion bonds the first and second package portions together at their lateral ends for holding the first and second package portions together and releasing them during a packaging cycle.
In the preparation process of the packaging material, a first high-adhesion layer, a base layer, a releasable layer and a second high-adhesion layer are sequentially arranged on a second packaging part, then the end part of the first packaging part is adhered to the second high-adhesion layer, the edge of the second high-adhesion layer is aligned with the edge of the first packaging part, and if the first packaging part does not completely cover the second high-adhesion layer, the problem that the exposed second high-adhesion layer is adhered to the rest part of the packaging material in the rolling process of the packaging material is caused; if the edge of the first packaging part protrudes out of the second high-adhesion layer, when the first packaging part and the second packaging part are separated in the packaging process, the part of the first packaging part protruding out of the second high-adhesion layer is easy to adhere to the second high-adhesion layer, so that the bonding effect of the first packaging part through the second high-adhesion layer is affected.
Disclosure of Invention
The invention aims to provide a packaging film roll which has the functions of facilitating preparation and guaranteeing use effects.
The technical aim of the invention is realized by the following technical scheme: the utility model provides a packing roll film, includes a plurality of end to end's package sections, the package section includes non-adhesive film, the adhesive film that is connected with non-adhesive film, two adjacent the adhesive film of package section and non-adhesive film junction set up bonding structure, bonding structure is including setting up the first high adhesive layer on the non-adhesive film, the basic unit of bonding fixing on first high adhesive layer surface, the releasable layer of setting up on basic unit upper surface, bonding on releasable layer and can with releasable layer phase separation's second high adhesive layer, the tip of non-adhesive film is after buckling bonding on second high adhesive layer upper surface, the tip bonding of adhesive film is at second high adhesive layer upper surface, the adhesive film tip is kept away from between the surface of second high adhesive layer through first transparent adhesive tape layer bonding connection with non-adhesive film tip, non-adhesive film tip is in the place that sets up first high adhesive layer and bonds the place on the second high adhesive layer between the part, the tip is provided with the tear line, the tip of non-adhesive film is Z type buckling so that non-adhesive film makes the non-adhesive film extend towards the direction of film with the non-adhesive layer.
By adopting the scheme, when the coiled film is coiled on the winding drum and is to be used, the first transparent adhesive tape layer is adhered between the adhesive films and the non-adhesive films of two adjacent packaging sections, so that the second high-adhesive layer can be ensured to be covered, the problem generated when the second high-adhesive layer is exposed is solved, the adhesive films and the non-adhesive films do not need to be completely covered on the second high-adhesive layer in the preparation process, and the preparation is convenient; simultaneously when this roll of membrane is opened a book the back to article packing, the reel stops rotating when the circulation of preceding package section is finished, article continues to rotate because of inertia for the junction of two preceding package sections produces the pulling force, at first leads to releasable layer and the separation of second high cohesiveness layer, make the non-sticky film on the latter package section expand, the sticky film of preceding package section can continue to roll up on article, and the existence because of the pulling force makes the adhesion that second high cohesiveness layer can be level fix on the sticky film of inlayer, guarantee result of use, then lead to tearing line on the latter package section to be torn, realize the separation of two preceding package sections and the latter package section.
The invention is further provided with: the end of the adhesive film bonded to the second high-adhesion layer is in contact with or separated from the end of the non-adhesive film bonded to the second high-adhesion layer.
By adopting the scheme, at the junction of two preceding and subsequent packaging sections, because of adhesive film and non-adhesive film layer bond on the second high cohesiveness layer from opposite direction, first transparent adhesive tape layer bonds between the adhesive film and the non-adhesive film of two adjacent packaging sections to can guarantee to cover the second high cohesiveness layer, thereby make the tip that adhesive film bonded on the second high cohesiveness layer and the tip that non-adhesive film bonded on the second high cohesiveness layer be in contact or phase separation, both can guarantee the result of use, reduce the preparation degree of difficulty.
The invention is further provided with: the non-adhesive film end is an extension of 10-20 cm in length, and the tear line is intermediate the extension.
The invention is further provided with: the length of the extension is 12 cm.
By adopting the scheme, the winding drum stops rotating at the end of the cycle of the previous packaging section, the article continues to rotate due to inertia, so that tension is generated at the joint of the front packaging section and the rear packaging section, the releasable layer is firstly separated from the second high-cohesiveness layer, the non-cohesiveness film on the next packaging section is unfolded, the cohesive film of the previous packaging section can be continuously wound on the article, and the second high-cohesiveness layer can be flatly adhered on the cohesive film of the inner layer for fixing due to the existence of the tension; the extension part is arranged at the moment, so that the unfolding length of the non-adhesive film on the later packaging section can be increased, the adhesive film on the former packaging section can be ensured to continuously move for a proper distance, and the second high-adhesion layer is ensured to be completely adhered to the adhesive film on the inner layer and then torn from the tearing line.
The invention is further provided with: the non-adhesive films and the adhesive films in the same packaging section are bonded and connected through a second transparent adhesive tape layer.
The invention also aims to provide a preparation method of the packaging rolled film, which has the effect of convenient preparation.
The technical aim of the invention is realized by the following technical scheme: the preparation method of the packaging rolled film comprises the following steps: (1) preparation of a packaging section: the joint of the non-adhesive film and the adhesive film is adhered and fixed through a second transparent adhesive tape, and a tearing line is processed at one end of the non-adhesive film far away from the adhesive film; (2) preparation of connection of two adjacent packaging sections: firstly, brushing an adhesive on one end of a non-adhesive film with a tearing line of one packaging section to form a first high-adhesion layer, bonding a base material on the first high-adhesion layer to form a base layer, brushing a release agent on the base layer to form a releasable layer, brushing an adhesive on the releasable layer to form a second high-adhesion layer, and bonding one end of the non-adhesive film with the tearing line on the second high-adhesion layer after bending; bonding one end of the adhesive film of the other packaging section to the second high-adhesion layer of the non-adhesive film of the previous packaging section; then, at the joint of the two packaging sections, the end parts of the adhesive film and the surfaces of the non-adhesive film, which are far away from the second high-adhesion layer, are connected in an adhesive manner through the first transparent adhesive tape layer; finally bending the non-adhesive film with the base layer, the releasable layer and the second high-adhesive layer towards the extending direction away from the other packaging section; (3) preparation of packaging rolled film: repeating the step (2) for a plurality of times, connecting the packaging sections end to end, and winding to obtain a complete packaging coiled film.
Through adopting above-mentioned technical scheme, in the junction of two preceding package sections, because of viscidity film and non-viscidity film layer follow opposite direction bonding on the high cohesiveness layer of second, first transparent adhesive tape layer bonding is between viscidity film and the non-viscidity film of two adjacent package sections to can guarantee to cover the high cohesiveness layer of second, thereby make the tip that viscidity film bonding on the high cohesiveness layer of second and non-viscidity film bonding on the high cohesiveness layer of second when contacting or phase separation, both can guarantee the result of use, reduce the preparation degree of difficulty.
Drawings
Fig. 1 is a schematic structural view of embodiment 1;
fig. 2 is a schematic structural diagram of embodiment 2.
Reference numerals: 1. a non-adhesive film; 11. an extension; 2. an adhesive film; 31. a first high adhesion layer; 32. a base layer; 33. releasable layer; 34. a second high adhesion layer; 4. a first transparent adhesive tape; 5. a tear line; 6. and a second transparent adhesive tape.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: a packaging roll film is shown in fig. 1 and comprises a plurality of end-to-end packaging sections, wherein each packaging section comprises a non-adhesive film 1 and an adhesive film 2 connected with the non-adhesive film 1, and the connection part of the non-adhesive film 1 and the adhesive film 2 is bonded through a second transparent adhesive tape 6.
As shown in fig. 1, the adhesive film 2 and the non-adhesive film 1 of two adjacent package segments are provided with adhesive structures at the connection. The adhesive structure comprises a first highly adhesive layer 31 provided on the non-adhesive film 1, a base layer 32 adhesively secured to the surface of the first highly adhesive layer 31, a releasable layer 33 provided on the upper surface of the base layer 32, and a second highly adhesive layer 34 adhered to the releasable layer 33 and capable of being separated from the releasable layer 33. The first high adhesion layer 31 and the second high adhesion layer 34 may be formed using a brushing adhesive, the base layer 32 may include, but is not limited to, for example, a paper material, and the releasable layer 33 may be formed using a brushing release agent on the base layer 32.
As shown in fig. 1, the end of the non-adhesive film 1 is bent and then adhered to the upper surface of the second high-adhesion layer 34, the end of the adhesive film 2 is adhered to the upper surface of the second high-adhesion layer 34, the end of the adhesive film 2 adhered to the second high-adhesion layer 34 is contacted with the end of the non-adhesive film 1 adhered to the second high-adhesion layer 34, and the end of the adhesive film 2 and the end of the non-adhesive film 1 are adhered and connected with each other through the first transparent adhesive tape 4 layer on the surface far from the second high-adhesion layer 34. The part of the non-adhesive film 1 at the end where the first highly adhesive layer 31 is provided and the part where the second highly adhesive layer 34 is adhered is an extension 11, the length of the extension 11 is 10-20 cm, in this embodiment 12 cm is selected, and the tear line 5 is in the middle of the extension 11. While the end of the non-adhesive film 1 is bent in a Z-shape so that the non-adhesive film 1 extends in a direction away from the adhesive film 2.
The implementation effect is as follows: when the coiled film is coiled on a winding drum and is to be used, the first transparent adhesive tape 4 layer is adhered between the adhesive film 2 and the non-adhesive film 1 of two adjacent packaging sections, so that the second high-adhesive layer 34 can be ensured to be covered, the problem generated when the second high-adhesive layer 34 is exposed is solved, the adhesive film 2 and the non-adhesive film 1 do not need to be completely covered on the second high-adhesive layer 34 in the preparation process, and the preparation is convenient; meanwhile, when the coiled film is uncoiled and then packaged on an article, the winding drum stops rotating at the end of the cycle of the previous packaging section, the article continues to rotate due to inertia, so that tension is generated at the joint of the front packaging section and the rear packaging section, the releasable layer 33 is firstly separated from the second high-adhesion layer 34, the non-adhesion film 1 on the latter packaging section is unfolded, the adhesion film 2 of the former packaging section can be continuously coiled on the article, the second high-adhesion layer 34 can be flatly adhered on the adhesion film 2 of the inner layer due to the existence of the tension, the use effect is ensured, and then the tearing line 5 on the latter packaging section is torn, so that the separation of the front packaging section and the rear packaging section is realized.
When the cycle of the previous packaging section is finished, the winding drum stops rotating, the article continues to rotate due to inertia, so that tension is generated at the joint of the front packaging section and the rear packaging section, the releasable layer 33 is firstly separated from the second high-adhesion layer 34, the non-adhesive film 1 on the next packaging section is unfolded, the adhesive film 2 of the previous packaging section can continue to be wound on the article, and the second high-adhesion layer 34 can be flatly adhered on the adhesive film 2 of the inner layer to be fixed due to the existence of the tension; the extension 11 is arranged to increase the length of the non-adhesive film 1 in the subsequent wrapping stage to ensure that the adhesive film 2 in the previous wrapping stage continues to move a suitable distance to ensure that the second highly adhesive layer 34 is completely adhered to the adhesive film 2 in the inner layer and then torn from the tear line 5.
Example 2: a packaging roll film, as shown in fig. 2, differs from example 1 in that the end of the adhesive film 2 bonded to the second high-adhesion layer 34 is separated from the end of the non-adhesive film 1 bonded to the second high-adhesion layer 34. At this time, at the joint of the front and rear packaging sections, the adhesive film 2 and the non-adhesive film 1 are adhered to the second high-adhesion layer 34 from opposite directions, and the first transparent adhesive tape 4 is adhered between the adhesive film 2 and the non-adhesive film 1 of the two adjacent packaging sections, so that the second high-adhesion layer 34 can be covered, and therefore, the end part of the adhesive film 2 adhered to the second high-adhesion layer 34 and the end part of the non-adhesive film 1 adhered to the second high-adhesion layer 34 do not need to be aligned and contacted, and the preparation difficulty is reduced.
Example 3: a preparation method of a packaging rolled film is matched with fig. 1, and comprises the following steps: (1) preparation of a packaging section: the joint of the non-adhesive film 1 and the adhesive film 2 is adhered and fixed by a second transparent adhesive tape 6, and a tearing line 5 is processed at one end of the non-adhesive film 1 far away from the adhesive film 2; (2) preparation of connection of two adjacent packaging sections: firstly, brushing an adhesive on one end of the non-adhesive film 1 with the tearing line 5 of one packaging section to form a first high-adhesion layer 31, bonding a substrate on the first high-adhesion layer 31 to form a base layer 32, brushing a release agent on the base layer 32 to form a releasable layer 33, brushing an adhesive on the releasable layer 33 to form a second high-adhesion layer 34, and bonding one end of the non-adhesive film 1 with the tearing line 5 on the second high-adhesion layer 34 after bending; bonding one end of the adhesive film 2 of the other wrapping section to the second highly adhesive layer 34 of the non-adhesive film 1 of the preceding wrapping section; then at the junction of the two packaging sections, the end part of the adhesive film 2 and the surface of the non-adhesive film 1, which is far away from the second high-adhesion layer 34, are bonded and connected through the first transparent adhesive tape 4; finally bending the non-adhesive film 1 with the base layer 32, the releasable layer 33, the second highly adhesive layer 34 towards the direction of extension away from the other packaging segment; (3) preparation of packaging rolled film: repeating the step (2) for a plurality of times, connecting the packaging sections end to end, and winding to obtain a complete packaging coiled film.
The adhesive film 2 and the non-adhesive film 1 are adhered to the second high-adhesion layer 34 from opposite directions at the joint of the front packaging section and the rear packaging section, and the first transparent adhesive tape 4 is adhered between the adhesive film 2 and the non-adhesive film 1 of the two adjacent packaging sections, so that the second high-adhesion layer 34 can be covered, and the end part of the adhesive film 2 adhered to the second high-adhesion layer 34 and the end part of the non-adhesive film 1 adhered to the second high-adhesion layer 34 can be used when being contacted or separated, and the preparation difficulty is reduced.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.

Claims (6)

1. The utility model provides a packing roll of film, includes a plurality of end to end's packing section, the packing section includes non-sticky film (1), sticky film (2) that are connected with non-sticky film (1), its characterized in that: the adhesive film (2) and the non-adhesive film (1) of two adjacent packaging sections are connected by an adhesive structure, the adhesive structure comprises a first high-adhesive layer (31) arranged on the non-adhesive film (1), a base layer (32) adhered and fixed on the surface of the first high-adhesive layer (31), a releasable layer (33) arranged on the upper surface of the base layer (32), and a second high-adhesive layer (34) adhered on the releasable layer (33) and separated from the releasable layer (33), the end part of the non-adhesive film (1) is adhered on the upper surface of the second high-adhesive layer (34) after being bent, the end part of the adhesive film (2) is adhered on the upper surface of the second high-adhesive layer (34), the end part of the non-adhesive film (2) is adhered and connected with the surface of the non-adhesive film (1) far from the second high-adhesive layer (34) through the first transparent adhesive tape (4), the end part of the non-adhesive film (1) is positioned at the position where the first high-adhesive layer (31) is arranged and the end part of the non-adhesive film (1) is adhered on the second high-adhesive layer (34) far from the surface of the non-adhesive film (1), and the end part of the non-adhesive film (1) is extended towards the direction of the non-adhesive film (2) after being bent.
2. A packaging roll as claimed in claim 1, wherein: the end of the adhesive film (2) bonded to the second high-adhesion layer (34) is in contact with or separated from the end of the non-adhesive film (1) bonded to the second high-adhesion layer (34).
3. A packaging roll as claimed in claim 1, wherein: the end part of the non-adhesive film (1) is an extension part (11) at the part where the first high-adhesion layer (31) is arranged and the part where the non-adhesive film is adhered to the second high-adhesion layer (34), the length of the extension part (11) is 10-20 cm, and the tearing line (5) is positioned in the middle of the extension part (11).
4. A packaging roll as claimed in claim 3, wherein: the length of the extension (11) is 12 cm.
5. A packaging roll as claimed in claim 1, wherein: the non-adhesive film (1) and the adhesive film (2) in the same packaging section are connected by bonding through a second transparent adhesive tape (6) layer.
6. A method of making a film roll according to claim 5, wherein: the preparation method comprises the following steps:
(1) Preparation of a packaging section: the joint of the non-adhesive film (1) and the adhesive film (2) is adhered and fixed through a second transparent adhesive tape (6), and a tearing line (5) is processed at one end of the non-adhesive film (1) far away from the adhesive film (2);
(2) Connection preparation of two adjacent packaging sections: firstly, brushing an adhesive on one end of a non-adhesive film (1) with a tearing line (5) of one packaging section to form a first high-adhesion layer (31), bonding a base material on the first high-adhesion layer (31) to form a base layer (32), brushing a release agent on the base layer (32) to form a releasable layer (33), brushing an adhesive on the releasable layer (33) to form a second high-adhesion layer (34), and bonding one end of the non-adhesive film (1) with the tearing line (5) on the second high-adhesion layer (34) after bending; bonding one end of the adhesive film (2) of the other packaging section to the second high-adhesion layer (34) of the non-adhesive film (1) of the previous packaging section; then, at the joint of the two packaging sections, the end part of the adhesive film (2) and the surface of the end part of the non-adhesive film (1) far away from the second high-adhesion layer (34) are bonded and connected through the first transparent adhesive tape (4) layer; finally, bending the non-adhesive film (1) with the base layer (32), the releasable layer (33) and the second highly adhesive layer (34) in a direction extending away from the other packaging section;
(3) Preparing a wrapping film: repeating the step (2) for a plurality of times, connecting the packaging sections end to end, and winding to obtain a complete packaging coiled film.
CN202110061522.2A 2021-01-18 2021-01-18 Packaging roll film and preparation method thereof Active CN112744452B (en)

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CN202110061522.2A CN112744452B (en) 2021-01-18 2021-01-18 Packaging roll film and preparation method thereof
US17/207,927 US20220227553A1 (en) 2021-01-18 2021-03-22 Packaging roll film and preparation method thereof

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CN112744452B true CN112744452B (en) 2023-04-28

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